423336400 has 30 divisors (see below), whose sum is σ = 1017066662. Its totient is φ = 169334400.

The previous prime is 423336391. The next prime is 423336451. The reversal of 423336400 is 4633324.

It can be written as a sum of positive squares in 3 ways, for example, as 27962944 + 395373456 = 5288^2 + 19884^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528771 + ... + 529570.

Almost surely, 2^423336400 is an apocalyptic number.

423336400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423336400 is an abundant number, since it is smaller than the sum of its proper divisors (593730262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423336400 is a wasteful number, since it uses less digits than its factorization.

423336400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058359 (or 1058348 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 423336400 is about 20575.1403397401. The cubic root of 423336400 is about 750.8650167593.

Adding to 423336400 its reverse (4633324), we get a palindrome (427969724).

The spelling of 423336400 in words is "four hundred twenty-three million, three hundred thirty-six thousand, four hundred".